Separable fastener



July 12, 1938.

D. MARINSKY 2,123,512

SEPARABLE FASTENER Filed Oct. 22,1936

INVENTOR A BY M512 4 ATTORNEY Patented July 12, 1938' 'UNITED STATESPATENT OFFICE SEPARABLE FASTENER 7 Application October 22, 1936, SerialNo. 106,961

13 Claims.

This invention relates to separable fastenersemploying stringers havinginterengaging links -with a slider movable along the stringers to coupleand uncouple the links, and particularly, to an improved end stop andslider construction for devices of the kind under consideration; and theobject of the invention is to provide a fastener of the class describedwith an end stop consisting of detachably coupled parts with means onsaid end stop and slider for retaining the slider and one part of theend stop against disengagement when the separate parts of the end stopare detached; a further object being to provide means involving saidcoupling or retaining means for supporting the slider in properalinement with the end stop part to facilitate engagement anddisengagement of the removable end stop part or pin so as to providefree and positive action in coupling and uncoupling the stringers; afurther object being to provide a slider and the end stop part to whichthe slider is adapted to be coupled one with a spring and the other witha part engaged by said spring to couple or latch said parts when injuxtaposition or abutting position and still further tothe provision ofmeans for disengaging or unlatching the slider with said part in theoperation of coupling the other of said end parts with the first namedpart prior to the coupling of the stringers by movement of the sliderlongitudinally thereof and away from said end stop; and with these andother objects in view, the invention consists in a device of the classand for the purpose specified, which is simple in construction,efiicient in use and which is constructed as hereinafter described andclaimed.

The invention is fully disclosed-in the following specification, ofwhich the accompanying drawing forms a part, in which the separate 40parts of my improvement are designated by suitable reference charactersin each of the views, and in which:

Fig, 1 is' a plan and sectional view of one end portion of a separablefastener with the slider 45 arranged in spaced relation to the end stopemployed.

Fig. 2 is a partial section on the line 2-2 of Fig. 1 with one of thestringers detached.

Fig.3 is a view of the'opposite side of the end of the fastener showninl ig. 1 with parts in a different position.

Fig. 4 is a section on the line 4--4 of Fig. 3.

Fig. 5 is a section on the line 5--5 of Fig. 3, indicating one of thestringers partly detached and showing the slider in coupled or latchedposition.

Fig. -6 is a view similar to Fig. 3 showing a modification; and, Fig. 7is a section substantially on the line 5 1-1 of Fig. 6.

In separable fasteners of the kind described, several problems have beenexperienced,'especially in devices of this kind as applied to shirts,lumber jackets and similar kinds of installations 10 where it isdesirable to completely separate the stringers. With these types ofdevices, what are known as detachably' coupled end stops are employed atone end of the stringers and difficulty has been experienced in properlycoupling the 15 separate parts of the end stop especially when passedthrough a slider disposed adjacent one of the end stops. On manyoccassions, the several parts have jammed and become inoperative whichis inconvenient for the user, especially because 20 of the difficulty inmaintaining the several parts in proper relative position to facilitatethe coupling which is necessary to provide the proper intermeshing ofthe links of the stringers. It is the purpose of my invention to render5 devices of this kind more fool-proof by eliminating the possibility offaulty coupling of the stringers in the provision of means for latchingor retaining the slider against displacement from one of the end stopparts and to maintain 30 the slider in constant engagement with saidpart soas to insure and simplify the iecoupling of the end stop parts aswell as to mainta n the slider and first named part in alinement toinsure free passage of the second end stop part through the slider andfirst named part. The structure shown and described herein constitutesan improvement of the structure disclosed in my earlier application,Serial Number 78,604, filed May 8, 1936. 40

In Figs. 1 to 5 inclusive, I have shown one method of carrying myinvention into effect, and in these figures'l have shown parts of oneend portion of stringers l0 and II. having coupling links or scoops I2and [3 arranged longitudinally of one edge portion thereof and adaptedto be coupled and uncoupled by a slider l4 movable longitudinallythereof as in other devices of this kind.

The end portion of the fastener disclosed is adapted to be coupled anduncoupled by means of a detachable end stop consisting in theconstruction shown of a U-shaped part l5 having an elongated bar l6arranged and secured in one side of the channel ll of said part, the barportion I8 projecting beyond the inner end of the U-shaped part I5 asseen at Mia. The inner side surface of the bar portion I6 is providedwith longitudinally spaced notches or recesses I62). The other part I8of the end stop is in the form of an elongated pin or bar substantiallysimilar to the bar I6 and this part is provided with spaced knobs I8aadapted to enter the notches or recesses I6b to couple said partstogether, it being understood at this time that the part I8 may berecessed and the bar portion I6 provided with the projections, ifdesired. The ends of the stringers I and II or that portion thereof towhich the bars I6 and I8 are secured are preferably reinforced in anysuitable manner. In the construction shown, sheet metal platesl9 andI911 are employed and these plates extend around the beaded edges Illa,Ila of the stringers Ill and II within the bars I6 and I8 as indicated,in Fig. 4 of the drawing.

The pin part I8 is insertable into the channel I1 of the U-shaped partI5 at one side of the bar I 6 and projects from the part I5 insubstantially parallel relation to and in alinement with the projectionIlia. The U-shaped part I5 has inturned flanges I5a at'its side edgesand these flanges serve to retain the pin I8 against lateraldisplacement from the part I5, and the space between theflanges willreceive the stringer tapes including the plates I9, I9aarranged-thereon. Arranged on the rear side surface of the part I5 is aspring plate or arm 20 which may be riveted or otherwise secured inposition as seen at 2 I, and if desired, this plate may be countersunkin said surface of the part IS. The end portion 22 of the part 20projects beyond the end wall 23 of the part l5 which wall forms a stopwall against which the end of the slider I4 abuts; and said projectingend 22, in the construction shown in 'Figs. 1 to 5 inclusive, isprovided with an aperture 24 adapted to receive a projecting pin orother member 25 on the corresponding surface of the slider I4 when thelatter is in abutting relation to the end wall 23 of the member l5 asseen in Fig. 5 of the drawing. The end portion 22 of the spring 20 ispreferably flared outwardly in order to provide free movement ofthe endof the slider beneath said spring as the slider advances in thedirection of the end stop.

Adjacent the attached end of the spring 20is an inwardly projectingportion or pin 26 which passes through an aperture 2! formed in the partI5 and is adapted to project into that part of the channel I! into whichthe pin part I8 passes. The arrangement of the projection 26 and thepart I8 will be such that in moving said part I8 into the part I5, theprojection 26 will be engaged to move the spring 20 outwardly anddisengage the same from the projection or pin 25 on the slider andthuspermit the movement of the slider longitudinally of the stringers awayfrom the end stop in coupling the links I 2 and I3 of the stringers, itbeing understood that when the part I8 is detached from the part I5, thespring 20 will be in engagement with the pin orprojection 25 to hold andretain the slider I 4 against displacement from the part I5 and at thesame time will operate to hold the end of the slider in abuttingengagement with the stop wall 23, thus maintaining the slider in properposition to facilitate free and non-bindinginsertion and removal of thepin part I8 with respect to the slider and the part I5. The slider I4includes a finger piece or pull 21 which is pivoted or otherwise coupledto the front face of the slider as indicated at 28.

' In the construction shown in Figs. 6 and '7 of the drawing, I haveillustrated a slight modification wherein a spring arm or coupling 29 issubstituted for the arm 20, the arm 29 being'of narrow construction toillustrate that it is not essential to employ the wide arm shown in Fig.3. With this construction, the slider Ha is provided with an aperture orrecess 30 adapted to receive a pin or projection 3| at the free endportion of the arm 29 which simply amounts to a reversal of the aperture24 and pin 25 shown in Figs. 2 and 5. The structure shown in Figs. 6 and7 also includes an inwardly projecting pin 26a similar to the pin 26which passes through an aperture in one side wall of the U-shaped bodylie to be engaged by the pin part I8 to move the pin 3I out of theaperture 30 of the slider Ila to permit longitudinal movement of theslider on the stringers in coupling the same.

In the construction shown, the slider coupling or latching means hasbeen incorporated in connection withamolded or die cast body of adetachable end stop, but it will be understood that the same may beincorporated in conjunction with or as a part of other types and formsof end stops as well as in sliders of various types and constructions.The distinctive feature of the present invention resides in theprovision of means on an end stop and a slider movable toward and fromthe end stop for positively coupling or latching the slider with the endstop to retain the slider against displacement therefrom, especiallywhen the stringer parts are detached or separated. It will be understoodin this connection that the slider will beuncoupled or unlatched by theinsertion of the pin member into the socket portion of the end stop towhich the slider is coupled. It is also desirable to provide relativelywide abutting surfaces on the slider and end stop so that in couplingthe slider with the end stop, proper alinement of the slider with theend stop may be maintained to facilitate insertion and removal of thepin part.

Having fullydescribed my invention, what I claim as new and desire tosecure by Letters Patent, is:

stop at one end of the stringers limiting the movement of the slider inthe direction of said end of the stringers, a yielding coupling partarranged upon the outer surface of said end stop and extendinglongitudinally thereof with the free end of said part projecting ontothe stringer beyond the body portion of said end stop, the free end ofsaid yielding part and slider being provided one with a projection andthe other with an aperture receiving the projection for coupling theslider to said stop to prevent displacement of the slider therefrom, andmeans movable relatively to the end stop and cooperating with theyielding part thereof for controlling the coupling and uncoupling of theslider with said end stop.

.2. In separable fasteners employing stringers and a slider movablelongitudinally on the stringers for coupling and uncoupling the same, anend stop at one end of the stringers limiting the movement of the sliderin the direction of said end of the stringers, a yielding coupling partarranged upon the outer surface of said end stop and extendinglongitudinally thereof with the free end of said part projecting ontothe stringer beyond the body portion of said end stop, the free end ofsaid yielding part and slider being provided one with a projection andthe other with an aperture receiving the projection for coupling theslider to said stop to prevent displacement of the slider therefrom, andmeans movable relatively to the end stop and cooperating with theyielding part thereof for controlling the coupling and uncoupling of theslider with said end stop, said last named means comprising a pin parton one of the stringers detachable with respect to the end stop andslider in uncoupling or separating the fastener stringers.

3. An end stop for separable fasteners employing stringers and 'a.slider movable longitudinally of the stringers to couple and uncouplethe same, said end stop being disposed at one end of the stringers, aspring arm on said stop, the free end portion of which projects beyondthe inner end of the stop, the free end of said spring arm having anaperture, saidend stop comprising a U-shaped body having a channellongitudinally of one side portion thereof, and said spring arm having aprojecting portion adapted to extend into said channel in one positionof said arm.

4. An end stop for separable fasteners employing stringers and a slidermovable longitudinally of the stringers to couple and uncouple the same;said end stop being disposed at one end of the stringers, a spring arm'on said stop, the free end portion of which projects beyond the innerend of the stop, the free end of said spring arm having an aperture,said end stop comprising a U-shaped body having a channel longitudinallyof one side portion thereof, said spring arm having a projecting portionadapted to extend into said channel in one position of said arm, thechannel of said end stop being attached to one of the fastener stringersand a pin part on the other fastener stringer in-' sertable into-thechannel of said body and cooperating with the projection on said arm tomove the arm outwardly with respect to one side surface of said body.

5. In separable fasteners employing stringers with a slider movablelongitudinally of the stringers to couple and uncouple the same, adetachable end stop at one end of the stringers, said end stopcomprising a U-shaped part attached to one stringer with a channelportion of said part disposed outwardly of one edge of the stringer, apin part on the other stringer insertable into the channel of the firstpart in coupling the end stop and said end of the stringers, said firstnamed part having a spring member mounted upon one side face thereof,said member having a projection normally extending into the channel ofsaid part by the spring properties of said member, said member and theslider of said stringers having interengaging couplings for latching andretaining the slider against displacement from the first named part whenin juxtaposition thereto and when the pin part is detached from saidfirst named part.

6. In separable fasteners employing stringers with a slider movablelongitudinally of the stringers to couple and uncouple the same, adetachable end stop at one end of the stringers, said end stopcomprising a U-shaped part attached to one stringer with a channelportion of said part disposed outwardly of one edge of the stringer, apin part on the other stringer insertable into the channel of the firstpart in coupling the end stop and said end of the stringers, said firstnamed part having a spring member mounted upon one side face thereof,said member having 'a projection normally extending into'the channel-ofsaid part by the spring properties of said member, said member and theslider of said stringers having interengaging couplings for latching andretaining the slider against dis placement from the first named partwhen in juxtaposition thereto and when the pin part is detached fromsaid first named part, and said pin part engaging the projection on saidmember in the insertion of the pin part into the first named part tomove said member into position to unlatch the slider from said firstnamed part.

7. In detachably coupled end stops for separable fasteners, a U-shapeddie cast body forming one part of the end stop and secured to one of thefastener stringers with a channeled portion of said part disposedlongitudinally of one side edge of the stringer, a pin part on the otherstringer insertable into the channel of the first named part, a flatspring secured at one end to one side surface of the first named part,the free end of said spring projecting beyond the inner end of thechanneled portion of said part, said spring having a projectionextending through the side wall of said first named part into thechannel thereof and adapted to be engaged by the pin part when insertedinto the channel to move said spring outwardly with respect to the sidesurface of said first named part.

8. In detachably coupled end stops for separable fasteners, a U-shapeddie cast body forming one part of the end stop and secured to one of thefastener stringers with a channeled portion of said part disposedlongitudinally of one side edge of the stringer, a pin part on the otherstringer insertable into the channel of the first named part, a flatspring secured at one end to one side surface of the first named part,the free end of said spring projecting beyond the inner end of thechanneled portion of said part, said spring having a projectionextending through the side wall of said first named part into thechannel thereof and adapted to be engaged by the pin part when insertedinto the channel to move said spring outwardly with respect to the sidesurface of said first named part, and the free end portion of saidspring having latching means for engaging the slider when arranged injuxtaposition to said first named part.

9. In detachably coupled end stops for separable fasteners, a U-shapeddie cast body forming one part of the end stop and secured to one of thefastener stringers with a channeled portion of said part disposedlongitudinally of one side edge of the stringer, a pin part on the otherstringer insertable into the channel of the first named part, a. fiatspring secured at one end to one side surface of the first named part,the free end of said spring projecting beyond the inner end of thechanneled portion of said part, said spring having a projectionextending through theside wall of said first named part into the channelthereof and adapted to be engaged by the pin part when inserted into thechannel to move said spring outwardly with respect to the side surfaceof said first named part, the free end portion of said spring havinglatching means for engaging the slider when arranged in juxtaposition tosaid first named part, and part of said spring being countersunk in theside surface of said first named part.

10. In detachably coupled end stops for separable fasteners, a U-shapeddie cast body forming one part of the end stop and secured to one of thefastener stringers with a channeled portion of said part disposedlongitudinally of one through'the side wall of said first named partinto the channel thereof and adapted to be engaged by the pin part wheninserted into the channel to move said spring outwardly with respect tothe side surface of said first named part, the tree end portion of saidspring having latching means for engaging the slider when arranged injuxtaposition to said first named part, part of said spring beingcountersunk in the side surface of said first named part, said firstnamed part having a pin portion arranged parallel to the pin part whenthe stringers are coupled together, and said pinportion and pin parthaving means preventing lateral movement with respect to each otheroutwardly of the channel portion of the first named part.

11. In separable fasteners employing stringers and a slider movablelongitudinally of the stringers for coupling and uncoupling the same, anend stop at one end of the stringers limiting the movement of the sliderin the direction of said end of the stringers, said stop comprising asocket member secured to one stringer and a pin member secured to theopposed stringer, said pin member being insertable into and removablefrom the socket of the socket member, a yielding coupling part on saidsocketmember, an element on said yielding part and projecting into thesocket of said socket member, said pin member engaging said element wheninserted into the socket member, and said yielding part and slider beingprovided, one with a projection and the other withtan aperture receivingsaid projection for coupling the slider with said socket member toprevent displacement of the slider therefrom when said pin member isremoved from the socket member.

12. In separable fasteners employing stringers and a slider movablelongitudinally of the stringers for coupling and uncoupling the same, an

end stop at one end oi the stringers limiting the movement of the sliderin the direction of said end of the stringers, said stop comprising asocket member secured to one stringer and a pin member secured to theopposed stringer, said pin member being insertable into and removablefrom the socket of the socket member, a yielding coupling part on saidsocket member, an element on said yielding part and projecting into thesocket of said socket member, said pin member engaging said element wheninserted into the socket member, said yielding part and slider beingprovided, one with a projection and the other with an aperture receivingsaid projection for coupling the slider with said socket member toprevent displacement of the slider therefrom when said pin member isremoved from the socket member, and said socket member having projectingportions engaged by said slider in maintaining lateral alinement of theslider with said socket member when coupled therewith.

13. In separable fasteners employing stringers and a slider movablelongitudinally of the stringers for coupling and uncoupling the same, anend stop at one end of the stringers limiting the movement of thestringers in the direction of said end of the stringers, said and stopcomprising a socket member secured to one stringer and a pin membersecured to the opposed string-.

er, means for coupling the slider with the socket member when the slideris in abutting relation therewith, said means comprising a resilientpart projecting from the socket member onto the stringer and adapted tooverlap the end portion of the slider when moved into engagement withsaid socket member, said resilient part and slider being provided onewith a projection and the

